Server Browse List missing

smbclient -NL localhost doesn't show other linux or windows computers from the workgroup in the column below server on the smbclient report generated using the -L option.

The report indicates that the browse Master is on another computer. That other computer has resources to share. At a minimum, the list should show the master and the localhost in the server column. But it doesn't do that like it use to do in older releases. Surprisingly, the Files program shows all the computers in the workgroup. I tried using bcast by removing wins from hosts: in nsswitch.conf and the name resolve order = in smb.conf but that had no effect.
Version: 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
Description: Ubuntu 18.04.5 LTS
Release: 18.04

I expected to see

Server
------
Neptune
Pluto
PIServer
...
Mimas

Workgroup Master
--------- -------
WORKGROUP PISERVER

linux computers on the smbclient report under the server heading which are all running samba and offering shares or services.

Instead, no other servers are being reported under the server heading. I would expect as a minimum that PIServer and Neptune (the localhost) would show up since both Neptune and PISERVER are sharing services and PIServer is recognized as the master.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: smbclient 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
ProcVersionSignature: Ubuntu 5.4.0-72.80~18.04.1-generic 5.4.101
Uname: Linux 5.4.0-72-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 26 00:31:16 2021
InstallationDate: Installed on 2020-07-25 (275 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SambaClientRegression: Yes
SourcePackage: samba
UpgradeStatus: No upgrade log present (probably fresh install)